Ryosuke Kaihara

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Evil-doer
Full Name	Ryosuke Sugano
Alias	Ai's Stalker
Origin	Oshi no Ko
Occupation	University student
Powers / Skills	Knife skills
Hobby	Watching Ai Hoshino and other idols.
Goals	Kill Ai Hoshino. (succeeded)
Crimes	Serial murder Manslaughter Stalking Psychological abuse
Type of Villain	Homicidal Stalker

“	You liar... To think you have a brat... Why... You deceived me...	„
	~ Ryosuke to Ai Hoshino.

“	Does that hurt?! I was hurt worse! You went and had kids even though you're an idol! You fan-betraying slut. You lured us in with your constant "I love you! I love you!" crap! It was all lies!	„
	~ Ryosuke to Ai Hoshino.

Ryosuke Sugano (菅野 良介, Sugano Ryōsuke) is a minor antagonist of the manga and anime series Oshi no Ko. He was an obsessed fan of Ai Hoshino, the leader of the idol group B-Komachi and mother of Aquamarine Hoshino and Ruby Hoshino, after learning that she gave birth to twin children. He is also responsible for the death of Gorou Amamiya when the male doctor chased him at night.

He is voiced by Atsushi Tamaru in Japanese and by Gabriel Regojo in English. In live action he was portrayed by Kazuto Mokudai who also portrayed Michinaga Azuma/Kamen Rider Buffa in Kamen Rider Geats.

Biography

Ryosuke was dating B-Komachi idol Niino Fuyuko and would eventually fall obsessively in love with the group's main idol Ai Hoshino.

He will first appears when he confronts Gorou Amamiya at night and asks him if he is the doctor of Ai Hoshino, to which Gorou then chases after him realizing that he is stalker of her and that he was somehow able to know that she is pregnant. As Gorou chases him in the middle of the forest at night, he appears from behind Gorou and pushes him off the cliff where he was standing, ending his life in the process.

He is seen again at his house watching Ai Hoshino on screen. A few years later after Ai gave birth, Ryosuke would go to her apartment at her door, carrying with him a bunch of flowers with a knife hidden behind. As Ai opens the door, he stabs her and starts furiously tell her how he felt about Ai taking care of her kids while she is an idol, to which Ai then tells him that she remembers him in the past and that she wanted to love her fans with lies.

Filled with horror and guilt, Ryosuke would run away in panic with Ai dying from blood loss. Nino would tell him to go die, which he will do. It was later announced in the news that Ryosuke committed suicide after his crime and that the officials would stop their investigation into Ai's murder due to his sudden suicide.

Personality

????

Gallery

Trivia

• Due to killing the fan-favorite Ai, in the fandom circles, Ryosuke was depicted as a butt monkey for various memes, where he was injured/killed/humiliated by both heroes and villains from various franchises/series.

External Links

• Ryosuke Sugano on the Oshi no Ko Wiki